A certain type of device has an advertised failure rate of 0.0125 per hour. The failure rate is constant and the exponential distribution applies. (a) What is the mean time to failure? (b) What is the probability that 320 hours will pass before a failure is observed?
A certain type of device has an advertised failure rate of 0.0125 per hour. The failure rate is constant and the exponential distribution applies. (a) What is the mean time to failure? (b) What is the probability that 320 hours will pass before a failure is observed?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 60CR
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![A certain type of device has an advertised failure rate of 0.0125 per hour. The failure rate is constant and the
exponential distribution applies.
(a) What is the mean time to failure?
(b) What is the probability that 320 hours will pass before a failure is observed?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3eb03a80-7cae-4d33-b228-e2e0361c370e%2F67a3d3e2-18e0-4474-ab34-f0520d9ef619%2F7zczwxn_processed.png&w=3840&q=75)
Transcribed Image Text:A certain type of device has an advertised failure rate of 0.0125 per hour. The failure rate is constant and the
exponential distribution applies.
(a) What is the mean time to failure?
(b) What is the probability that 320 hours will pass before a failure is observed?
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